Only hours before the vote, Mrs May had told Cabinet that "candid" legal advice given to ministers must remain confidential, despite a motion passed by the Commons last month demanding the release of the "final and full" papers.

Attorney General Geoffrey Cox insisted the Government has "gone out of its way" to satisfy the terms of the humble address to the Queen passed by Parliament on November 13 which demanded the release of the legal advice in full.

Speaking in the Commons after the vote, Leader of the Commons Andrea Leadsom said: "We've tested the opinion of the House twice on this very serious subject.

"We've listened carefully and in light of the expressed will of the House we will publish the final and full advice provided by the Attorney General to Cabinet."

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Mrs Leadsom has written to the Committee of Privileges watchdog, calling for an inquiry into the use of the humble address procedure, which had fallen out of use since the 19th century but has been revived by Labour to inflict a number of binding defeats on the Government.

The constitutional row came as:

Bank of England governor Mark Carney warned a no-deal Brexit could result in shopping bills soaring by 10%;

The European Court of Justice's senior lawyer said that Article 50, which started the Brexit process, could be revoked unilaterally by the UK;

A senior Toyota executive warned a no-deal Brexit could result in "stop-start production" for weeks or months at the car giant's UK plant;

The BBC dropped proposals for a TV debate featuring Mrs May, Labour leader Jeremy Corbyn followed by a discussion between eight panellists including politicians from different sides of the Brexit argument.

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